Securing means for car tank dome closures



Oct. 13, 1931. J. BEYER 4 SECURING MEANS FOR CAR TANK DOME GLOSURESFiled April 4, 1929 WWI/00M I 52 Mm A Patented 13, 1931 mm: BEYER,

or :BAY NE; NEW-JERSEY, ASSIGNORTO AMERICAN GAR Aim scum) COMPANY, 01*Nnw'YonK, N.Y.,A;GORPOBATIO1\T oFNEwJERsEY-Q j V Thisinvention "relatesgenerallv to car:

tanks and has particular reference to secure ing means for cartank domeclosures.

One object of the present invention is'the :provision of means forpreventingtheblowj :1 release" of the e 7 111g oifof'dome covers uposecuring meanstherefor. 1

Another object of the, invention is the provision of dome cover securingmeans'which,

even though released; prevents the removal o ii'thedom'e cover from thedome while there is excessfgas pressur' 'withi th tank: I 7 p A furtherobject of the invention is the ,"fprovision ofa dome hover securingmeanswhich is easy and inexpensive to manufacture and strong and durable 1nopera-tlon v, f Otherobjects and advantages of this Y 7 'v'ention willbe apparent from the following fdescri'ption taken in conjunction jwiththe accompanying drawings inwhich: I

j Figure 1 l is a'partial vertica1 seetion; of a "car tank dome showingthefpresent inven tion applied thereto 2i 1 Fig. 2 is a top plan view ofa car tank dome, 'certainparts being broken away'f Fig; 3 is an enlargeddetail sectionallviewof a; portion of a tank dorne and dome cover'showing'in'fulllines the securingm'eans in securing PQSifiQn and inbroken linzeisi'the'rsfi -=Figs. 5, 6"'and 7 disclose etails or amam-t5.

curing means in their released-position}f- I Fig.4 is affront elevationof jo'nefof 'the securing means in cover securing position; v Fig. 5 is1 an end view a modified form of the invention;

F igi 1 'afi e .1 I in Fig. 5;fand

T ssue in Fig. 5. I [QR ferring' no oit'ith'e part shown W moreparticularly to the drawings invwhicli sirnilar characters of ref-o er sgna a n arv p ts. s he s er views, the saididr'awings disclose, aportion bf which comprises a Inain portion i0 (see Fig. 3) and "areduced; forward; portion "12-defining a' 'shoulderl. Theextrerne endwardlyexte ding flange 16 the reduced end '12,' with: the shoulder 14vand the flange 16, I

outlininga seat '18 foroth'e reception of a U shaped yoke 20, the endsof which are apertured 'to'piv otally engage the'fhead 22 ofyoke'carrier 24c in the forin ofa T-bolt. For "preventingdisengagementof the yoke with "the carrier 24,..the' ends of the head-22am prefer pe' as own? 26,- Theiy e "carrier 24 is arranged through andisflon'gi'tudinally movable in an .apertured'jlugf28 365 I formed integral vwiththe dome} ring 4 and as' shown at *3Q, to receive.g anadjusting nut "32which is adapted to bearfagainst thelower l surface of the 111g 28. To;prevent acciden ta'l los s of;thenut 32; the1yoke carrier at its lowerend is provided with suitable retaining 7 means, such as the soft headrivet 34igToT "provide additi'onalstrength, the end of theip'rojectioni's provided with a stifienin'g web] mergingwith the edge ofthe cover. I .v 1

fi' edforrn" of the invention, and the" dome "cover inthis form isprovided with a pluralevation o f the forin Shown I of a tank domehaving a head'2; a'fdoine ring. 4L and a dome cover.6 seated on thefdome ring. v

at 8, which are. 1 substantially jequidisftant1y spaced, as'cIea'rlyshOWn-in Figqfl, andea'ch In the fornrof the invention shownlinFigs- 'l to tinclusive; the domecoverfifiis provided with a plurality ofintegral ra dia-lly -extend-f fling projections or lugs,'indicatedjgenerally seat 46 and each having an end: flangeiAS similarto the flange '16 hereinbeforejde f scribed, Forseeuring theprojectio'ns, the

latter'are preferably welded. in any suitable ity of pairs of guides. 38jwhichreceive independent'lugs40, the same each 'comprising'a tweenth'eguides,,which"latter, in the instance and the projection 44fCOIl'lpfiSllI 1g'. the yoke manner and" by any ipreferred' nethod ,Of

w d 'g' o t u ew S wn a 0-; hes

" of invention Sh n in" Figs} 5,161. a has advantage in that hQuld, anyof the projecti'ons bejloroken they he removed v bIir-ningatjthe weldedoints and areplacee ;;.ma 1 ,fl W be pp e tof each projectionisprovid'ed with "an up a s n-di ;oew l ih romfem in 1 of course, a lugfor-each ofjthe projections :8; "The yoke carrier is threaded at itslower end '36 whichfis' clearly shown in the drawingsjas v T shaped:base 42 adapted to be insertedbee TIhi'isie; airs before mentioned, thedoh1e"i-ing7"? on upon the nuts '32 may be screwed home to tighten theyokes in their engagement with the projections 8. When it is desired tore- .moveithe cover 6. thenuts 32 are backed otion the yoke carrier, andit will be apparent that should there be excessive gas pressure withinthe tank, the dome cover 6, when the nuts 32 are loosened, will be urgedupwardly by .the excess gas pressure thereby opening the interior of thetank to the atmosphere .to vent the .gas from the tank. LBecause ofthisupwardgmovement of the cover 6, it willbe'apparent that the yokes willbe retained in-engagement with the proj ections .and they can- \not .be:readily removed from their engagemen't'because of theflanges .16 attheendsof .the projections. Whenthe-gas pressure .has been reduced to asafety point, the dome .cover :6 will, of course, reseat on the domering whereupon the yokes may be removed .from their engagement with :theprojections .and the cover then removed.

.From the .above :description, it is believed tha'tthe constructionofthedevice ofthepresent invention will 'be fully apparentto .thoseskilled in theart when taken in conjunction with the accompanyingdrawings but .it is tofbe understood that the latter a are forillustrative purposes only and that various changes in the form .andproportions fofrthe I scheme outlined herein may be made within thescope of .theappended claims without vdeparting from the spirit of theinvention. 'What .is .claimed is: p I r 1. In .a container, .a.coverthereor, a cover -suppor.t,=and means for-securing thecover to thesupport comprising wprojection-s extending radially of the cover, boltsconnected with the cover support and longitudinally movable relativethereto, and yokes pivotally 2. :In .a tank, a closure therefor having.radialproj ections, andmeans for securing the closure .to the.tanlocomprising yokes detachably engaging the projections, and yokecarriersconnected to the tanktand mova ble with respect thereto .toplacathe yokes in :tension .on said projections.

3. In va tank .dome. a dome ring,-a cover seated on the dome ringandprovided with radial pro ections having depressed seats at their ends,vand cover securing means comprising yoke. carriers connected with thedome rlngand movable relative thereto, and

yokes pivotally secured to the carriers and engaged in 'the beforementioned depressed I .4. Inca tankdome having amanhole .Opening, a domering surrounding said opening, a plurality of apertured lugs extendingoutwardly from the ring, longitudinally movable yoke carriers mounted inthe lugs, a dome cover having radial projections provided withidepressedareas defining seats havingan outer iflange, and yokesplvota'lly secured to the yoke carriers and normally engaged in saidseats and retained against endwise shifting by-saidouter 'fiange. r

5. ln-ac -ar'tan k dome, adome ring, a cover seated thereon and providedwith radial projections, 'apertured 'lugs on the dome ring, yokecarriersmounted in the lugs and longitudinally movable-With respectthereto, yokes pivotally secured to the carriers above the lugs,andnuts-Jonsaid'carriers for "adjustment thereon to firmly engage theyokes with the projections.

6. Ina car tankdome, a dome ring, a cover normally seated thereon andprovided with radial projections, and means for securing the cover tothe ring comprising 'U-shaped yokes I movable vertically in an arc toengage overtheprojections, longitudinally shiftable l7..lln.combinationwith atank dome and .cover :therefor, .means for securing the covercomprlslng pro ections formed with the cover, .yoke carriers connectedwiththe dome,

.90 yokewcarriers connected to the dome -ring and and yokes connected tosaid carriers and en- 400 gageable over the projections and adjustabledownwardly with respect to the dome. and cover to "tightly engage theprojections.

8. In .combination with .a tank'dome and comprising projections formedwith the I cover-{longitudinally shiftable T-boltsloosely connected tothe dome, yokespivotally connectedto'thefheads of said bolts and engageacover'therefor, means for securing the cover- 1 able over the,projections and means foradllo jjusting the bolts to secure the yokesto the" t'he cover and provided with depressed areas,

T-shaped bolts connected to thedome and longitudinally adjustable withrespect-thereto, sa-idboltshaving their heads uppermost,

yokes pivotally secured to the heads of said' bolts and adapted to beengaged with and disengaged from the projections on the cover,

andfmeans on the bolts for adjusting the latter to secure the yokes tothe projections. 10. In combination with a tank dome andacover therefor,means for securing the cover comprisingapertured lugs on the dome, T-

shaped "bolts in the apertures in said lugs,

' yo'kes' pivotally secured to the headset said :bolts,'t he heads ofsaid boltsibeing arranged above the aperturedlugs; projections extendingradiallyfrom the cover andwith which said yokes engage, and adjustablemeans carried by-the boltsfor adjusting the latter to cause s aid 'yokesto tightly engage the projections, said adjustable meansfbeing so con- 1struc'ted and arranged that they engage with lower surfaces ofsaid'lug'sto retain the 1': shaped bolts and yokesin cover securingpo'si- 11. In a tank dome, a doniering having apertured-horizontal lugsextending there from, a'cover seated on'the ring and Frovided I withradial projections,longitudina 1y shift- I 5 able T-shaped boltsarranged in the apertures in said horizontal lugs, a yoke pivotally se-I cured to eachof saidbolts at the heads there ofand beingso arrang'edasto swing vertically in an arc to be engaged with or. disen- 2o gagedfrom thesaidprojectiona' and means J I I my hand.

carried by said bolts below the horizontal lugs for securing the yokesin engagement with the cover projections. v t Q I I In witness whereof Ihave hereunto set JO HNBEYER.

